Split, Mini-split, or Air-Source Heat Pump?
I am leaning towards mini-splits for a 30 unit 3 story affordable apartment building in Chicago but have been told that the cost of electricity makes that a bad choice. I know air source heat pumps are also all electric but is that a better choice? Apartment sizes range from 300 to 500. For an identical building a few blocks away we installed a high efficency individual gas furnace with condensors on the roof. We have an opportunity to try (experiment) with this building with another system. If the upfront costs were the same what system should we install based on use of energy.
Thanks for any help.